Array substrate, method of manufacturing the same and liquid crystal display apparatus having the same

Abstract

An array substrate includes a transparent substrate, an organic insulation layer, a pixel electrode, a reflective layer, a light blocking pattern and a switching part. The transparent substrate includes a reflective window that reflects an ambient light and a transmissive window that transmits an artificial light. The organic insulation layer disposed over the transparent substrate becomes thinner gradually at a boundary between the transmissive window and the reflective window. The pixel electrode is formed in the transmissive region. The reflective layer is disposed over the organic insulation layer of the reflective window. The light blocking pattern is disposed at the boundary between the transmissive and reflective windows to prevent a light leakage. The switching part is electrically connected to the pixel electrode to apply an image signal to the pixel electrode. Therefore, a light leakage occurring at boundary is prevented by the light blocking pattern.

Description

[0001] This application relies for priority upon Korean Patent Application No.2003-37231 filed on Jun. 10, 2003, the contents of which are herein incorporated by reference in its entirety.[0002] 1. Field of the Invention[0003] The present invention relates to an array substrate, a method of manufacturing the array substrate and a liquid crystal display apparatus having the array substrate. More particularly, the present invention relates to a transmissive and reflective type array substrate for preventing light leakages, a method of manufacturing the array substrate and a liquid crystal display apparatus having the array substrate.[0004] 2. Description of the Related Art[0005] Generally, a photosensitive material for patterning an oxidation layer, a metal layer, a semiconductor layer, etc. is widely used in a process of manufacturing a semiconductor device or a liquid crystal display apparatus.[0006] The liquid crystal display apparatus includes an array substrate having a plurality...

AI Technical Summary

Benefits of technology

The present invention provides an array substrate for a liquid crystal display apparatus that prevents light leakage at the boundary region between a transmissive region and a reflective region. This problem arises due to an abnormal arrangement of liquid crystal molecules caused by an unstable electric field. The invention aims to improve the display quality and stability of the liquid crystal display apparatus.

Problems solved by technology

In case of the transmissive and reflective type liquid crystal display apparatus, above described problems become more serious.

However, even when rubbing grooves are uniformly formed via the rubbing process, the pretilt angle of first and second inclined portions (or boundary regions) `A` and `B` is not uniform.

As a result, a light generated from a backlight assembly leaks through the first and second inclined portions `A` and `B` to induce an inferiority of a display quality.

Furthermore, when the transmissive and reflective type liquid crystal display panel is used as a touch screen panel, a display defect caused by moisture may occur as well as the light leakage.

When the touch screen panel is compressed, electric fields of the boundary region becomes unstable to induce an abnormal arrangement of the liquid crystal molecules.

Therefore, a fatal light leakage occurs, so that an afterimage remains at the boundary region and moisture gathers at the surface of the touch screen panel.

As described above, the light leakage caused by an abnormal arrangement of liquid crystal molecules disposed in a boundary region between a reflective region and a transmissive region comes out as problems.

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